All of the following are correct about DNA fingerprinting, except
A. it can be used to analyze evidence when only minute amounts of DNA are found.
B. it displays the unique pattern of an individual's DNA fragments.
C. it can be used on hair and saliva.
D. it cannot be used on specimens older than five years.
E. it is routine to use it as trial evidence in the U.S.
Answer: D
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A strain of bacteria containing F? factor genes is called a
A. monozygote. B. heterozygote. C. homozygote. D. merozygote. E. hemizygote.
A pine tree is called a sporophyte because it
a. develops from a germinated spore. b. produces spores by meiosis. c. is haploid. d. undergoes fertilization. e. reproduces by both sexual and asexual means.
WHAT DOES NATURAL SELECTION RESULT IN
What will be an ideal response?
The Pr ? Pfr conversion cycle is known to control various growth functions in plants. Which of the following functions does the cycle NOT control?
A. inhibit shoot elongation B. promote seed germination C. decrease water transport D. affect accumulation of chlorophyll in plant tissue E. promote flowering